Table S.2. The commercially available widths minimizing the film usage for conventional wrapping method

Table S.2. The commercially available widths of un-stretched films minimizing plastic film consumption for conventional wrapping method for pl=2 to 16 pre-assumed film layers.补充表S.2：当预先假定薄膜层数为2至16层时，可使传统包装方法的塑料薄膜消耗量降至最低的未拉伸薄膜的市售宽度。